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squid vulnerabilities and exploits
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4
CVSSv2
CVE-2021-33620
Squid prior to 4.15 and 5.x prior to 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server.
Squid-cache Squid
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Debian Debian Linux 9.0
4
CVSSv2
CVE-2021-31808
An issue exists in Squid prior to 4.15 and 5.x prior to 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.
Squid-cache Squid
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Netapp Cloud Manager -
Fedoraproject Fedora 33
Fedoraproject Fedora 34
4
CVSSv2
CVE-2021-31806
An issue exists in Squid prior to 4.15 and 5.x prior to 5.0.6. Due to a memory-management bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request processing.
Squid-cache Squid
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Cloud Manager -
5
CVSSv2
CVE-2021-28651
An issue exists in Squid prior to 4.15 and 5.x prior to 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can eas...
Squid-cache Squid
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Cloud Manager -
4
CVSSv2
CVE-2021-28652
An issue exists in Squid prior to 4.15 and 5.x prior to 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecif...
Squid-cache Squid
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Fedoraproject Fedora 33
Fedoraproject Fedora 34
4.3
CVSSv2
CVE-2021-28662
An issue exists in Squid 4.x prior to 4.15 and 5.x prior to 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic.
Squid-cache Squid
Debian Debian Linux 10.0
Fedoraproject Fedora 33
Fedoraproject Fedora 34
5
CVSSv2
CVE-2020-25097
An issue exists in Squid up to and including 4.13 and 5.x up to and including 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whites...
Squid-cache Squid
Debian Debian Linux 10.0
Fedoraproject Fedora 32
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Cloud Manager -
4.3
CVSSv2
CVE-2021-28116
Squid up to and including 4.14 and 5.x up to and including 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.
Squid-cache Squid
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Debian Debian Linux 10.0
Debian Debian Linux 11.0
3.5
CVSSv2
CVE-2020-15810
An issue exists in Squid prior to 4.13 and 5.x prior to 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security a...
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Fedoraproject Fedora 31
Fedoraproject Fedora 32
Fedoraproject Fedora 33
Opensuse Leap 15.1
Opensuse Leap 15.2
4
CVSSv2
CVE-2020-15811
An issue exists in Squid prior to 4.13 and 5.x prior to 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security a...
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Fedoraproject Fedora 31
Fedoraproject Fedora 32
Fedoraproject Fedora 33
Opensuse Leap 15.1
Opensuse Leap 15.2
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-21111
CVE-2024-32884
IDOR
CVE-2023-1000
CVE-2024-33260
CVE-2024-3682
reflected XSS
race condition
CVE-2024-3400
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